Roy Sando - USGSJoanna Thamke - USGS20140611Altitude of the top of the Upper Hell Creek hydrogeologic unit in the Powder River structural basinRaster Digital Data SetScientific Investigations Report2014-5047Reston, VirginiaU.S. Gelogical Surveyhttp://water.usgs.gov/lookup/getspatial?sir2014-5047_altitude_of_top_of_Upper_Hell_Creek_hydrogeologic_unit_in_Powder_River_basinJoanna N. ThamkeGary D. LeCainDerek W. RyterRoy SandoAndrew J. Long20140612Hydrogeologic Framework of the Uppermost Principal Aquifer Systems in the Williston and Powder River Structural Basins, United States and CanadareportScientific Investigations Report2014-5047Reston, VirginiaU.S. Geological Surveyhttp://pubs.usgs.gov/sir/2014/5047/These data represent the altitude, in feet above North American Vertical Datum of 1988 (NAVD88), of the Upper Hell Creek hydrogeologic unit in the Powder River basin. The data are presented as ASCII text files that can be converted to continuous raster format.These data were collected as part of the groundwater availability study of the Upper Cretaceous and lower Tertiary geohydrologic units in the Williston and Powder River structural basins. These data are intended for regional use and may not be as accurate at local or point scales.The files listed below are supplemental to the USGS SIR SIR 2014–5047 titled “Hydrogeologic Framework of the Uppermost Principal Aquifer Systems in the Williston and Powder River Structural Basins, United States and Canada” and should not be used without an understanding of what the files represent. To read the methods used to derive the data contained in these files, please read the “Methods” section of SIR 2014–5047.
If you are having trouble converting the ASCII text files to rasters, use the ArcGIS Toolbox found at http://pubs.usgs.gov/sir/2014/5047/downloads/ASCII_Files/ASCII_to_ProjectedRaster.tbx
For instructions on how to utilize this toolbox, see http://pubs.usgs.gov/sir/2014/5047/downloads/ASCII_Files/ASCII Files README.docx"
2014publication dateCompleteNone planned-119.24309912-105.58692175484.62674643682.226231511NonePowder River basinGroundwaterGroundwater availabilityUpper Hell CreekNone. Please see 'Distribution Info' for details.None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations.Wyoming-Montana Water Science Center Roy SandoPhysical Scientist (GIS)mailing address3162 BozemanHelenaMT59601-6456406-457-5953406-457-5990tsando@usgs.govhttp://water.usgs.gov/GIS/browse/sir2014-5047_altitude_of_the_top_of_the_Upper_Hell_Creek_hydrogeologic_unit_in_the_Powder_River_structural_basin.jpgIllustration of data setjpgDerek Ryder, Gary LeCain, Julian Heilman, Jennifer Stanton, Andy Long, Jen Bednar, Katherine Aurand, Kyle Davis, Timothy Bartos, Dianne RaucheEnvironment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.2 (Build 3497) Service Pack [N/A] (Build [N/A])Surfaces were checked with well logs that had specified drill depths and a defined hydrogeologic unit or aquifer.All data were shown to be consistent with descriptions in the accompanying report. The data were also checked to ensure agreement with the original publication (Hotchkiss, W.R. and Levings, J.F., 1986, Hydrogeology and simulation of water flow in strata above the Bearpaw Shale and equivalents of eastern Montana and northeastern Wyoming: U.S. Geological Survey Water-Resources Investigations Report 85–4281, 72 p. (Also available at http://pubs.er.usgs.gov/publication/wri854281.)
All data were also checked to be in agreement with other hydrogeologic units or aquifers in the study area so that there are no overlaps among sequential units.
Additionally, in areas where the unit outcrops, the land surface elevation (National Elevation Dataset; NED) was used as the surface.Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.A formal accuracy assessment of the horizontal positional information in the data set has not been conducted.A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable.W.R. Hotchkiss and J.F. Levings1986Hydrogeology and simulation of water flow in strata above the Bearpaw Shale and equivalents of eastern Montana and northeastern WyomingDigital and/or Hardcopy ResourcesReston, VAU.S. Geological Surveyhttp://pubs.er.usgs.gov/publication/wri854281Digital and/or Hardcopy Resources1986publication dateHotchkiss and LevingsSource information used in support of the development of the data set.Lewis, B.D., and Hotchkiss, W.R.1981Thickness, percent sand, and configuration of shallow hydrogeologic units in the Powder River Basin, Montana and WyomingDigital and/or Hardcopy ResourcesReston, VAU.S. Geological Surveyhttp://pubs.er.usgs.gov/publication/i1317Digital and/or Hardcopy Resources1981publication dateLewis and HotchkissSource information used in support of the development of the data set.Gesch, D.B.2007The National Elevation DatasetDigital and/or Hardcopy ResourcesBethesda, MEAmerican Society for Photgrammetry and Remote Sensinghttp://nationalmap.gov/viewer.htmlDigital and/or Hardcopy Resources2007publication dateNEDSource information used in support of the development of the data set.For a description on the processing and development of this dataset, see the 'Methods' section of the associated Scientific Investigations Report 2014-5047 (http://pubs.usgs.gov/sir/2014/5047/).2014RasterGrid Cell4082381Lambert Conformal Conic33.045.0-104.00.00.00.0row and column1000.01000.0MeterD_North_American_1983GRS_19806378137.0298.257222101Attribute TableTable containing attribute information associated with the data set.Producer definedValueAltitude of the top of the unitProducer defined-2283.31591796886169.5141601563Feet above NAVD88The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set.The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.U.S. Geological SurveyAsk USGS -- Water Webserver Teammailing address445 National CenterRestonVirginia20192USA1-888-275-8747 (1-888-ASK-USGS)http://water.usgs.gov/user_feedback_form.htmlDownloadable DataAlthough this data set has been used by the U.S. Geological
Survey, U.S. Department of the Interior, no warranty expressed or
implied is made by the U.S. Geological Survey as to the accuracy
of the data and related materials. The act of distribution shall not
constitute any such warranty, and no responsibility is assumed by
the U.S. Geological Survey in the use of this data, software, or
related materials.
Any use of trade, product, or firm names is for descriptive
purposes only and does not imply endorsement by the U.S.
Government.Raster Digital Data SetFull coverage261 kbhttp://water.usgs.gov/GIS/dsdl/sir2014-5047_altitude_of_the_top_of_the_Upper_Hell_Creek_hydrogeologic_unit_in_the_Powder_River_structural_basin_tif.zipAscii RasterFull Coverage743 kbhttp://water.usgs.gov/GIS/dsdl/sir2014-5047_altitude_of_the_top_of_the_Upper_Hell_Creek_hydrogeologic_unit_in_the_Powder_River_structural_basin_txt.zipNone. No fees are applicable for obtaining the data set.20140620U.S. Geological SurveyAsk USGS -- Water Webserver Teammailing445 National CenterRestonVA201921-888-275-8747 (1-888-ASK-USGS)http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sir2014-5047_altitude_of_top_of_Upper_Hell_Creek_hydrogeologic_unit_in_Powder_River_basinFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998